pie) oblong-lanceolate, acute, sparingly denticulate or entire, tripli-quintupli-
nerved, pubescent or somewhat villous; the cauline 4-7 pairs, nearly equal,
partly clasping ; the lowest tapering to the base ; rays short; achenia minutely
hirsute.—Less.! in Linneea, 6. p. 238 ; DC. ! 1. c. A. montana a.,
Hook.! 1. c. A. foliosa, Nutt.! in trans. Amer. phil. soc. (n. ser.) 7. p . 407.
Unalaschka, Chamisso ! Rocky Mountains on the Colorado of the West,
Nuttall! to the Woody Country of Subarctic America, Richardson! &fc—
Stem 1-24 feet high. Leaves 3-5 inches long. Heads on slender peduncles.
Pappus plumose-serrate. Achenia (in our original as well as other
specimens) less hirsute than in A. montana.
4. A . mollis (Hook.): villous-pubescent; stem leafy, bearing 1-5 heads;
leaves thin and flaccid, veiny, nearly glabrous when old, denticulate or toothed ;
the cauline 3-5 pairs, somewhat equal; the upper ovate-lanceolate and closely
sessile ; the lower lanceolate or oblong, narrowed at the base, or tapering into
a margined petiole; scales of the hirsute involucre acuminate; achenia
hirsute; pappus almost plumose.—Hook. ! fl. Bor.-Am. 1 . p . 331. A. lan-
ceolata, Nutt.! in trans. Amer. phil. soc. 1. c. p. 408.
Alpine rivulets of the (northern) Rocky Mountains, Drummond ! Moist
places on the White Mountains of New Hampshire, in the alpine and sub-
alpine region, Dr. Pickering! Mr. Oakes! Nuttall! Mr. Tuckerman!
Mountains of New York, near the sources of the Hudson River!—Stem
10-30 inches high; the internodes mostly longer than the leaves. Upper
leaves obscurely 3-nerved from the broad base ; the lower somewhat tripli-
nerved; the radical oblong-spatulate, petioled; the upper varying from oblong
ovate and obtuse to lanceolate from a broad base, and tapering to an
acute point, pleads smaller than in A. montana; the pappus nearly plumose
to the naked eye.
5. A . latifoUa (Bongard): stem sparingly hirsute-pubescent, or nearly gla-
hrous, bearing 3—5 heads ; leaves thin and flaccid, ovate, unequally and often
very sharply serrate, veiny, minutely pubescent with short hairs above, glabrous
(except the veins) beneath; the cauline about 3 pairs, often acute,
sessile, or the lowermost somewhat petioled ; the radical subcordate, obtuse,
on slender petioles; scales of the involucre lanceolate, acuminate, hairy
towards the base; achenia almost glabrous.—Bong.! veg. Sitcha, l. c. p.
147; D C .! 1. c. A. Menziesii, Hook.! fl. Bor.-Am. 1. p. 331, t. I l l ;
Nutt. 1. c.
North West Coast, from Sitcha! Observatory Inlet! and Fort Vancouver !
to the Rocky Mountains!—Stems 1-2 feet high. Peduncles slender. Scales
of the campanulate involucre and the rays usually 11 to 14, in the Sitcha
specimens as well as others ; in which also the achenia are not perfectly glabrous,
but pubescent with scattered hairs near the summit.
6. A . cordifolia (Hook.): stem sparingly villous, bearing 1-5 heads; leaves
nearly all cordate, thin, nearly glabrous, veiny, very unequally and often in-
cisely and sharply serrate ; the cauline 2-3 pairs, mostly acute ; the uppermost
sessile, the others like the radical on slender petioles ; scales of the involucre
acuminate, villous when young; achenia hirsute-pubescent.—Hook.!
fl. Bor.-Am. 1. c. A. macrophylla, Nutt, in trans. Amer. phil. soc. 1. c,
Vallies of the Blue Mountains of Oregon, Douglas ! Nuttall, to the Spo-
kan River, and the east side of the Rocky Mountains, Drummond !—Plant
10-20 inches high, often paniculate at the summit, bearing larger heads than
the preceding (from which it is perhaps not sufficiently distinct), with about
12 large and long rays. Lower leaves often obtuse, and shorter than the
hairy petioles. Achenia becoming glabrous towards the,base.
7. A . amplexicaulis (Nutt.): sparingly pubescent, or at length glabrous,
somewhat caespitose, very leafy; cauline leaves 5-6 pairs, approximate,
ovate, acute, serrate-toothed, veiny, partly clasping; heads 3- 5 ; scales of
the involucre linear-lanceolate, acuminate, sparsely hirsute; achenia hirsute.—
Nutt.! in trans. Amer. phil. soc. 1. c.
Oregon, on rocks at the Falls of the Wahlamet, Nuttall /—About a foot
high ; the leaves, except the uppermost, much longer than the internodes, all
closely sessile, 1—2 inches long. Rays small.
t Species unknown to us (corolla glabrous).
8. A . obtusifolia (Less.): radical leaves petioled, subspatulate, obtuse,
5-nerved, scabrous ; the cauline elliptical; head solitary ; scales of the hirsute
involucre exceeding the disk, oblong-elliptical; corolla glabrous. DC.
1. c.—Less, in Linneea, 6. p. 238.
Unalaschka, Chamisso.—Stem 6—12 inches high, more or less hirsute.
Hfeads as large as in A. montana: rays sulphur-color, short. Anthers blackish.
Less.
9. A. Unalaschensis (Less. 1. c .) : radical leaves petioled, subspatulate
obtuse, serrate towards the apex, very scabrous ; the cauline oblong-obovate;
head solitary; scales of the hirsute involucre exceeding the disk, linear-lanceolate.
DC. 1. c.
Unalaschka, Chamisso. Stem 6 inches high, leafless and hirsute-villous
at the summit. Leaves quintupli-nerved. Heads as in the preceding ; the
rays deeper yellow. Less. '
167. LESSINGIA. Cham, in Linneea, 4. p. 203, t. 2, / . 2 ; Less. syn.
p. 388, ƒ. 17; DC. prodr. 5. p. 351.
Heads many-flowered, homogamous ; the marginal flowers larger and ra-
diatiform, obconical, deeply 5-lobed ; those of the disk cylindrical-tubulose,
5-toothed. Involucre imbricated. Receptacle naked. Stamens and styles
included. [Branches.of the style tipped with a dense tuft of rather rigid
hairs.] Achenia compressed, not beaked, silky-villous. Pappus a single
series of scabrous reddish somewhat rigid capillary bristles.—A procumbent
branching annual [tomentose and canescent when young], at length somewhat
glabrous. Leaves alternate, thickish ; the lowest pinnatifid, the upper
toothed at the apex. Heads solitary, terminal and alar. Flowers vel-
loyv. DC.
p f 51Germanorum <Cham- 1 c,)-H o o k. 4- Am . bot. Beechey, suppl.
California, Chamisso, Douglas— Plant with the aspect of an Asterea, but
ToCaliflormcf SeneClone®- The sPecific name ought perhaps to be changed
T r ib e V. CYNARErE. Less.
I Heads homogamous or heterogamous, sometimes dioecious. Style
in the perfect flowers often nodose-thickened near the summit (sometimes
penicillate at the node) ; the branches either distinct or concreted,
puberulent externally ; the stigmatic lines reaching their apex,
where they are confluent.